Coin-slot guard



April 22, 1 930. I w. RABK'IN COIN SLOT GUARD Filed Aug. '15, 1928 5|amen I07,

li'atenixed AP 22, 1 I I I it I YWILLIAMPRABK N, or NEW YoRK, 1\T. Y.f

e com-snow GUARD flA ppl icati o n filed. August 13, 19 28;:Serialhl'o'. 299,263. I

This invention is aguard for entrance i' sl'ots'and isintended primarilyfor use in I connection with the coin. tubes of coincon trolledmachinesbut may without'substan- L tial structural changes be employed as aguard for keyholes"and other structures in which 1 an operatingelement'listo be inserted through an' entrance Opening to reach andactuate other parts," Owners of coin-controlledmamischievous or; evildisposed persons insert- I ingin the coin slots paper, chewing gunr orother material which choke'thecein slots and prevent the use of themachines until after the obstructions have-been removed. In many.instances, it is necessary'to dismantle I the machine in order tovremove the obstructions,o,thereby incurring considerable exp ense aswell as losing the use oi the machine while the necessary repairs arebeing made. It is the objectof my inventionto provide a sim-. ple andinexpensive mechanism whichwill eflectually close the coin slot againstthe entrance of pa'per or other material whichis apt to choke the slotso .thatthe slot will always be in condition to admit aicoin, and afurther object of the invention is to provide.

' acoin guard which upon the entranceof a (coin will operate'to propelthe coin intojand through the coin tube Or -chute. One embodi- V ment ofthe inventionis illustrated in the acj 7 companying drawing and will behereinafter] 7 fully described, the novel features being par-,rticularly pointed out in the appended claims."

In the drawing Figure 1 is a vertic thereto 1 Fig.1 2 ass plan viewofthe a tubewith a part of the frame in section on the line Fig. 3fisaview similar to Fig. 'Zbut show; ing the guard intheposition assumedwhen a 'coin is inserted through thecoin slot;

' 7 Her Fig. 2, and

Fig; 5 is a transver se sectionfon the line V-55ofF ig.2,v

chines are subjected to great annoyance by:

' 1s obvious.

I al section "of a portion of a coin tubeandthe frame of a coin-',controlled machine'havingmy invention applied sisting" ofalight bar havingb'osses12. at'its f nd i niitsned r s d 't up nlt pp .90 Y plateand'th'e reby space the'kee'per from said i 4t isa transverse section onthe line:

ofthe name of a coin controlledmachine: which is shown as having anopening 2 in its wall and a'plat'e 3 secured over the opening andprovided with a coin slot 4 ,the plate ,3-

'being'usually employed as a name plate and containing inscriptionsdescriptive ofthe ma; chine and directions for its" operation. ;The useof the plate 3', however, ismerely a'matter of convenience and the vcoin slot may 'bef i wall of the machine frame asfeo formed in the Thecoin chute is so arranged thatits coin 1 receiving end is disposed injuxtaposition to v the coinslot 4 and ofsuchjform as to receive the coinasitpasses throughthe coin-slot. 111 the present instance, the coin tube'or chute v V 7 compr ses an upper plate 5 having its inner orfrear endturned downwardly, as shown at 6-, to dlrect the coin to the operatingmechanism, and alower plate? which at its front end is provided withadepending' "flange'8, whereby it maybe secured by screws or otherfasteners to the plate 3 or the frame of the machine'immediately atthecoin slot 4: and

flush With the'lowerwall ofjsaid slotiv Side 7 flanges 9 are also formedon the'lower plate? to abut the upper plate 5 andthereby properly spacethe plates as well as form guides" to prevent lateral movement of thecoin and in- H sure its travel to the working niechanismfSO The upperanddower plates are, of course, firmly connected so as tomaintaintheir'de- T sired relation, fi,IlCl,riI 1 the present instance, theconnecting means consistozt two screws 10 inserted through the upperplate and having 8 threaded J engagement with the lower fplatej and alsopassing through and securing a'keeper 11 upon the upper plate, saidkeeper conplate, as shown This keeper may conven-j iently be formed ofsheet metal having its ends double'd upon. itself to provide the spa'c-I ing"bosses,' as shown clearly in Fig. 5. :It

willfbe jnoted that the vfront edgeofthel upper plate/5 is spacediromthe plate 3 on the i frontwall of the machine frame or casing but acentral tongue vl3 i's'vformedon' ,Said

plate to project; acrossthe' space betweenits' v 55 machine casingclears the projecting ends 21 "coin slot,'the lips consequently servingas,

the coin chute.

edge and the coin slot above the slot and thereby prevent the coin beinginserted through the slot in such position that it will not enterPivotally mounted at their rear ends in openings-14 provided therefor inthe upper plate 5 are jaws 15 having rearwardly projecting shanks orstems 16 formed with down-turned tenons 17 engaged through the openings14 so as to constitute pivots for the jaws. The inner opposed edges ofthe guards to prevent the entrance of paper or the like into the coinchute through the ends of the coin slot. The depending lips 18 terminateshort of the inner edges of the respective jaws which are stepped, asshown at 19, and at the transverse side of each step 19 is a seconddepending lip 20 which is disposed at a greater distance from the coinslot than is' the respectively ajacent lip 18 and each lip 20 has itsinner edge or end extended inward:

ly beyond the inner straight edge of the respective jawyas shown at 21,whereby to. meet on the medial line of the coin chute under the tongue13 so'that when the parts are in normal position the guard will extendthrough the entire extent of the slot.

1 When a coin, indicated at 22, is inserted through the coin slot 4, theedge of the coin will impinge against the inner opposed edges of thelips 18 and by reason of its curvature will pass between the said lipsso that the pressure exerted upon the coin to pass it through the coinslot will tend to spread the lips and open the jaws; Obviously,thisopening movement effected by engagement of the coin with the lips 18:willbe comparatively slight but as the entrance of the coin continuesits edge will engage the opposed ends of the lips 20 and will fullyopenthe jaws so that the coin may pass into the coin chute. Thejaws arenormally held in their closed position and caused to yieldably resistthe entrance of the coin by a spring .23 which, in the form. shown,rests upon the upperplate 5 of the coin chute and has its ends passingunder the' keeper 11 to bear against the outer sides of the stems 16 ofthe jaws. When the jaws are opened through the engagement .therewith ofan inserted coin, the ends of the spring will be spread and the springthereby put-under increased tension. As soon as that 7 diameter of thecoin which is substantially parallel, with the plate 3 or the frame ofthe ment covering of the lips 20, the spring will contract and close thejawsand this action will cause the ends 21 of the lips 20 to ride uponthe edge of the coin with such force that the coin will beforciblydriventhrough the coin chute and coin but will effectuallyresist the entrance of paper or gum or other material which is lack- 7ing in rigidity and, consequently, such material cannot be passedthrough the coin slot into the" coin chute but will remain in the slotand it may be easily removed from thecoin slot without requiring adismantling ofthe. entire apparatus. The device isvery simple way withthe'usual arrangement and opera- 8 tion of the mechanism' of thecoin-controlled machine. *f j V .Having thus described the inventiomllclaim:. c i

1. The combinationof a coin chute,and an element covering the entranceend of the coin chute and provided with a coin slot, one wall of thecoin chute beingspaced from said element and having a tongueprojectingto. the

elementat the'side of the coin slot therein, a pair of jaws mounted uponthe said wall of. the coin chute and movable toward and from each otherand provided adjacentv the coin slot with elements coverin the slot atthe exit side thereof, and means for yieldably holding the jawstogether. a

2. The combination witha coin chute, and an element covering the end ofthe chute and provided witha coin slot, of jaws mounted on the exteriorof the chute and provided at'l their free ends with lips depending at riht angles to the horizontal plane of the jaws ei tween the end of thechute andsaid covering element and adaptedto'cover the coin slotin meansfor other.' I a 3. Thecombination of a coin. chute, an elethe end of thecoin chute and provided wit ward and from each other and provided'attheir free ends with'depending lips between a' coin slot, jaws mountedex-T ternally upon the coin chute and movable tothe covering element andtheend of the chute arranged in stepped relation whereby they willbridge the coin slot in position to be. en-

gaged successively bya coin inserted. through the slot and therebyseparated, andresilient means bearingupon thejaws and tending constantlyto move them toward each other whereby to propel an inserted: coin intothe coinchute as the coin clears the inner lipsv;

4L. The combination of a coin chute comprising upper and lower'fplates,- -the upper plate terminating short the lower plate,

I means for securing said plates in spaced rela- 1Y0 .ment' and the endof the plate and'bridg g I up the slot' in said covering element toibe:en- 7 gaged by an inserted coin and thereby se'pais rated, a keepersecured on thefupper plate of the coin chute and bridgin the jaws,a nd

V a bow spring resting upon 't e upper plate of the coin chute with itsends bearingagainst v V the outer sides of the jaws and disposed belowthekeeper. v v In testimony whereof I aflix my signature. V r RABKIN [Ls.]

